| <!DOCTYPE html> |
| <script src="../resources/js-test.js"></script> |
| <script src="../resources/intersection-observer-helper-functions.js"></script> |
| <div id="host"></div> |
| |
| <script> |
| description("Tests that observations can be made across shadow DOM boundaries."); |
| var entries = []; |
| var target; |
| var observer = new IntersectionObserver(changes => { entries = entries.concat(changes) }); |
| |
| onload = function() { |
| let shadowHost = document.getElementById("host"); |
| let shadowRoot = shadowHost.createShadowRoot(); |
| target = document.createElement('div'); |
| target.style.cssText = "background-color: green; width:100px; height:100px"; |
| shadowRoot.appendChild(target); |
| observer.observe(target); |
| |
| entries = entries.concat(observer.takeRecords()); |
| shouldBeEqualToNumber("entries.length", 0); |
| waitForNotification(step1); |
| }; |
| |
| function step1() { |
| shouldBeEqualToNumber("entries.length", 1); |
| if (entries.length > 0) { |
| shouldBeEqualToNumber("entries[0].boundingClientRect.left", 8); |
| shouldBeEqualToNumber("entries[0].boundingClientRect.right", 108); |
| shouldBeEqualToNumber("entries[0].boundingClientRect.top", 8); |
| shouldBeEqualToNumber("entries[0].boundingClientRect.bottom", 108); |
| shouldBeEqualToNumber("entries[0].intersectionRect.left", 8); |
| shouldBeEqualToNumber("entries[0].intersectionRect.right", 108); |
| shouldBeEqualToNumber("entries[0].intersectionRect.top", 8); |
| shouldBeEqualToNumber("entries[0].intersectionRect.bottom", 108); |
| shouldBeEqualToNumber("entries[0].rootBounds.left", 0); |
| shouldBeEqualToNumber("entries[0].rootBounds.right", 800); |
| shouldBeEqualToNumber("entries[0].rootBounds.top", 0); |
| shouldBeEqualToNumber("entries[0].rootBounds.bottom", 600); |
| shouldEvaluateToSameObject("entries[0].target", target); |
| } |
| finishJSTest(); |
| } |
| </script> |
